Ignition timer



March 3, 1942. s P, w N JR 2,274,816

IGNITION TIMER Filed March 10, 1941 Inventor 'Z'nion 1.116922%); 5.

Afton/e Patented Mar. 3, 1942 UNITED STATES PATENT OFFICE IGNITION TIMERSimon P. Winthcr, Jr., West Palm Beach, Fla.

Application March 10, 1941, Serial No. 382,621

3 Claims.

The present invention relates to new and useful improvements in timersfor either battery or magneto ignition systems of internal combustionengines and has for its primary object to provide, in a manner ashereinafter set forth, a device of this character embodying novel meansfor closing the breaker points.

Other objects of the invention are to provide a timer of theaforementioned character which will be comparatively simple inconstruction, strong, durable. highly eilicient and reliable in use andwhich may be manufactured at low cost.

All of the foregoing and still further objects and advantages of theinvention will become apparent from a study of the followingspecification, taken in connection with the accompanying drawing whereinlike characters of reference designate corresponding parts throughoutthe several views, and wherein:

Figure l is a top plan view of an ignition timer embodying the presentinvention.

Figure 2 is a perspective view of the pivoted contact arm with theresilient closing element separated therefrom.

Figure 3 is a cross sectional view, taken substantially on the line 3-3of Figure 1.

Referring now to the drawing in detail, it will be seen that thereference numeral i designates a conventional housing or shell havingrotatably mounted therein the usual distributor arm shaft 2. Fixed onthe shaft 2 is a cam I.

Secured in the housing I is a substantially U- shaped stationary support4 of suitable material which terminates in an upturned end portion 5having mounted thereon a breaker point I.

Pivotally mounted on the other end portion of the stationary support 4is a contact arm I. The pivoted contact arm I extends adjacent theportion I of the member l and has mounted on its free end portion abreaker point 8 for engagement with the point 6. Mounted at anintermediate point on the pivoted contact arm I is a follower 9 whichrides on the cam 0. Thus. the arm 1 is operatively connected to the earn8 for actuation in one direction thereby for opening the, points I and tA conductor i0 electrically connects the contact arm I with a bindingpost II on the housing I.

Rising from the inner edge of the stationary support I at anintermediate point is an integral Mounted between will be readilyapparent from a consideration of the foregoing. Briefly, the cam 3actuates the pivoted contact arm 1 against the tension of the resilientrubber block l5 thereby opening the points 6 and 8 in an obvious manner.As the low portions of the cam 3 reach the follower l the resilientrubber block it expands and actuates the contact arm I in the oppositedirection for closing the breaker points 6 and 8. Of course, the rubberblock it maintains the follower l in engagement with the cam 3.

It is believed that the many advantages of an ignition timer constructedin accordance with the present invention will be readily understood andalthough a preferred embodiment of the device is as illustrated anddescribed, it is to be understood that changes in the details ofconstruction may be resorted to which will fall within the scope of theinvention as claimed.

What is claimed is:

1. An ignition timer comprising a stationary support, a breaker point onsaid support, a pivoted contact arm, a breaker point on said contact armengageable with the first named breaker point, opposed cups mounted onthe support and the contact arm, and a compressible block engaged insaid cups for actuating the contact arm for closing the breaker points.

2. An ignition timer comprising a stationary support, a pivoted contactarrm opposed breaker points mounted on the support and the contact armand engageable with each other, an integral flange rising from thesupport, opposed cups mounted on said flange and on the contact arm, anda compressible block engaged in said cups for actuating the contact armfor closing the breaker point.

3. An ignition timer of the character described comprising a housing. acam rotatably mounted in the housing. a substantially u-shaped.stationary support mounted in the housing, a-

breaker point on one end portion of said support. a contact armpivotally mounted on the other end portion of said support, a breakerpoint on the free end portion of the contact arm engageable with thefirst named breaker point, means operatively connecting the arm to thecam for actuation in one direction thereby for opening the breakerpoints, an integral flange rising from the inner edge of the stationarysupport at an intermediate point, opposed cups mounted on said flangeand on an intermediate portion of the contact arm, and a compressiblerubber block engaged in said cups and constituting means for actuatingthe contact arm in the opposite direction for closing the breakerpoints.

smon P. wmrni-za, Ja.

